update clang-format

This commit would update the repo's clang-format file to
the latest of docs/style/cpp/clang-format file.

Following is the new change that is added:
Brad :
  clang-format: cpp: remove empty lines

Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
Change-Id: Ieaadd8a1cd779c9c12adf6d065cc1f9e9a8fa37b
diff --git a/.clang-format b/.clang-format
index 945adae..00e2e25 100644
--- a/.clang-format
+++ b/.clang-format
@@ -77,7 +77,7 @@
 IndentCaseLabels: true
 IndentWidth:     4
 IndentWrappedFunctionNames: true
-KeepEmptyLinesAtTheStartOfBlocks: true
+KeepEmptyLinesAtTheStartOfBlocks: false
 MacroBlockBegin: ''
 MacroBlockEnd:   ''
 MaxEmptyLinesToKeep: 1